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Chapter 1

4 Text & Tests 4 Solution 19. (3x2 5x 1)(2x2 6x 5); x2 coeffi cients include 15x2 30x2 2x2 47x2 coeffi cient of x2 47. 20. (i) 3_____x 6 3 x 2 (ii) x 2 2x x x 2 (iii) 3x 3 26x2 3x 3x (x 2) 3x x(x 2) x2 2x (iv) 15x2y 10xy2 5xy = 3x 2y 21. (i) 6x2y 9xy2 3xy …

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